Insulated container



Nov. 16 1926,

c GLEAsN msULA'rzn CONTAINER Filed Feb. 27. 1924r @@077/ ZYA Patented Nov, 16, 1926.

lnerr-1f;o sr

(rss

' 1 1c ROY GLnAsoN, or CHICAGO,v rL-Lmors INSULATED CONTAINER;

I Application filed 'ebruary $27519,221.1S,Aerial` ing an inner andan butersliell, with ar space betweenfthem ythat is exhausted and l 5 sealedtoinaintain a high y'acuuin or'othe'rwise'insulatedso as 'to therebyiinsulate the contents ofthe yrefceptzicle from' the surrounding air, whether "said, contents4 be warmer or coolerfthan the surrounding air. The', intention-is herein 'shown yas vem'- bodiedin javacuuni' insulated 'milk can of th'attype"illustrated 'in my f'pro'r United States Letters Patent No. 1,437,647, v granted Decemberjth, 1,922. In lreceptacles of thisV character, and especially in long receptacles, such asinilk cans, 'wherein' thev inner shell'is suspended from the upper endy of the outer shellor/ a partsupported thereon', it is' difficult-to avoidlpenduluni swing of the inner lshell in away tendingf'to fracture the-connection between' said inner shell and its 1 topsup- 1 It visthe purpose ofthe presentinvention to provide yaV brace between thelowerends ofthe "inner andouter'shells of 'a character which possesses low-thermal conductivity to transmitheat from one' shell to the other across vthe*insulating-space between fthern, and whichrwill hold theinner Ashell fromV such pendulum motionr and therebys avoid destructivei. stresses .at the. top .connection .between fthe inner. shelland the :outer shell A' 'YY-v romfwhencethe inner shellis suspended..

55 .Other purposes of theinvention will appearas the descriptionproceeds, and the invention consists in. the combination'. and arrangement of .the parts shown in the drawings 'and .described .in the specification, vand is pointed outfin thefappended In the drawings: y Figure 1 is a View partly in side. elevation andpartallyin vertical section of a racuumized mlkfcan mbmyllg my inven- Figure. 2

tionv on the line 2- 2'Q0LFigure Figure 3 is a detail ,onV

Fgurellv; 4 Figure 4 is an enlarged [detailr ofi one of the brace bars f' I; ..5 l,

As shown in the drawings, the body of the canv comprises an .inner shell 10 and an outer shellv l1,y both herein shown as made cylindric. y. VSaid shells are formedfwith Ain-k s an enlarged horzntal ASecthe line of comprise at their u pperjendsv curved. breast sections la, and 15, respectively- Said breast sections( may be iliade "pa'rt's separatedfroni the inner landH outer, shells and Welded or otherwise-joined thereto. The.'can niay b e'surpoied 011' @bas [fins 16.'

. rl/he manner-,of connecting the inner shell to' and siispendirng l it fi'rom vv'the outer shell follows, the generalf construction in iny afere'sjaifi paorratent No; 1,437,647, granted sists, as shown, ofairelatiyely.massive 'ring section l and is welded Jtheretoto?.',io'rin'` a tapered; necltpof the inner breast section being fitted with'andbraze'd in a rebate'at ytlie'in'ne'r. 'sideof thefupper edge of' saidfring.'y The top'opening'lof the `can surrounded .by` said neel; is closedby a suit? Q able y cover 19,v whichV isV shown as tapered to l itiwithinsaid outwardlytapered neck por:

tion 18:., 'l These features of ther-f 'construcf tion,in themselves, :constitute no Apart` of 'the invention andlflnayf be otherwise designed. .5 i?

20;.20" designa@ brace"empresas made of thin metal or other rigid material. They intersect at the aXiaLcenter ofthe can and l are 'iized 'togethen at'V said''intersection may-$uiab1eimanna abr. 11 ,The intersectionen.said `brace ybars 1s/disposed inthe aX1s-ofthe can andthe ends ofthe brace Vbars labiit tlie of'thebottonir and upright walls .of theouter shell.`

The inner shellfiO'is' proifidedfwith adepending coaxial tip or lug 21', which-extends a y distance below the.4 bottoni "wall'th'ereo The .brace bars 20 are provided( at' their point oliintersectionwithfan4 opening 22 to ref :eiyev saidlug'l. Preferably/said,opening isfofal dial/nete?, to'loosely receivesa'id tip," 'so .l *thatl when the shells are concentric therewill be no contact'betweenfthe tipand the wall of said" oljiening;v "but contaetfof said tipl with saidjWall, V.npon sinall decentration of the shells, will flirnitf'pendu'lum ymovement of the inner shell. i

Asherein shown, the openingQQ:isiorined in a nipple 23 that is lsupported and iiredtosaid brace bars at.theirfintersection.

Said nipplefi'sheaded'` at one fend f for n'- gagement with one' ad@ or the intersecting braces yandA is adapted to 'be'flanged foyer lthe other" side ofsaid-.braces to holditin; place.

material possessing lower thermal conductivity than the brace bars 20. Said brace bars may be made of relatively light steel and the nipple 23 may be made of asbestos, rubber, balrelite or similar substances.

In accordance with another phase ofthe invention, the said brace bars are so formed as to limitheat conductivity, as compared to their cross-sectional mass, and to thereby slow down tendency of transmission of heat from one shellto the other through the insulating space in which said braces are located. Thisl may be effected by forming said brace bars with a plurality of apertures 24 and side notches 25. These apertures are formed partlyin the body of thebraces and partly at their edges and are staggered both laterally and longitudinally in such a way that the conductive path ofheat from end to end thereof is elongated relatively to the total length'of the braces. This construction and arrangementgives to the braces a low co-efliciency of heat conduction, with an ample bracing strength to the bars, and, so far as the broader phase of the invention is concerned, the brace members'may be otherwise constructed. |The arrangement herein shown, whereby two braces are employed, which intersect and are fastened to each other at their point of intersection., and which abut at their outer ends against the outer shell structure, is a desirable one, inasmuch at it provides a rigid: brace structure with a moderate thickness of material and, being located within the yinsulating space, serves to very materially insulate one shell from the other. l

In accordance with a further phase of the invention the said brace bars are upwardly curved from their outerends to their point of intersection, being highest at the latter point, where the centering stud 2l co-acts therewith. This curved or arched arrangement. hasthe effect of further strengthening the brace structure vas a whole.

The formation of the brace structure by intersecting elements has the Vadvantage of producing a very light but etlicient brace. This and other details of the vconstruction may be somewhat varied from the illustrated embodiment within the scope of the appended claims, it being the intent to claim all of inherent novelty herein disclosed.

I claim as my invention 1. An insulating container comprising inner and outer shells, separated by an Ainsulating barrier, with means to suspend thel inner shell from the outer shell at the top of .the container, and a brace structure for the inner shell supported on the Vouter shell,

the brace structure being perforated at numerous points to reduce the heat conductivity thereof. l

2. An insulating container comprising inner and outer shells, separated by' an insulating barrier, with means to suspend the inner shell from the outer shell at the top of the container, and a perforated braceL structurev for the inner shell within the space occupied by said barrier, comprising bars which intersect and are connected to the inner shell centrally thereof and abut said outer shell, the bars being perforated lat many points to reduce the heat conductivity thereof.

3. An insulating container comprising 1nner and outer shells, separated by an insulating' barrier, with means to suspend the inner shell from the outer shell at the top of the container, and a liXed brace structure between the bottoms of said shells comprising crossed bars fixed together at their pointr of crossing, stx-ida` bars being curved upiwardly from their abutting "ends totheir point of crossing, said bars being out lof contact with the inner container and there beingl an antipendulum connection between said 'inner shell and the points `of crossing of said bars. Y

1l. An insulating container comprising'inner and outer shells, separated an insulating barrier, with means to suspend the inner shell from the outer shell lat the topV ofthe container, a-brace structure between the bot-toms of said shells comprising'xed Abars crossing each .otherv and there apertured, and a stud projecting from the inner shell and entering said apertures, said bars being perforated, with the rperforations staggered transversely and longitudinally of the bars. l v

6. A vacuum container comprising inner and'outer-shells vseparated by a vaeuumized space, with means permanently to fasten the inner shell to the outer shell at the top of the container and suspendedtherefrom, and a device located between the bottom of `the inner shell and the outer shell and normally out of contact with one of the shells, for preventing Y objectionable swinging movements of the inner shell relatively to the outer shell. Y

7. A vacuum container comprising inner and outer shells separated by a vacuumized space, with means permanently to fasten the inner shell tothe outer shell at the top of the container and suspended therefrom, a

device located between the bottom of the inner vshell and -the bottom of the outer shell ancl'normelly vout of Contact With one of said shells, said device having an opening therein, and a part smaller than the 4signature this 16th opening* projecting into the latter from the latter'shell to limit relative swinging Inovements othev shells. f Y l In Witness Wliereoi1 I Claim the foregoing as my invention, I hereunto Vappend. my day of February, '1924. C ROY GLEASON. 

